bool PPCollisionWR(Sprite Sprite1,Sprite Sprite2,float AlphaLimit = 50.f)
{
float xmin1 = Sprite1.GetPosition().x - Sprite1.GetCenter().x;
float ymin1 = Sprite1.GetPosition().y - Sprite1.GetCenter().y;
float xmin2 = Sprite2.GetPosition().x - Sprite2.GetCenter().x;
float ymin2 = Sprite2.GetPosition().y - Sprite2.GetCenter().y;
float xmax1 = xmin1 + Sprite1.GetSize().x;
float ymax1 = ymin1 + Sprite1.GetSize().y;
float xmax2 = xmin2 + Sprite2.GetSize().x;
float ymax2 = ymin2 + Sprite2.GetSize().y;
float xmin = max(xmin1, xmin2);
float ymin = max(ymin1, ymin2);
float xmax = min(xmax1, xmax2);
float ymax = min(ymax1, ymax2);
//if(xmax <= xmin || ymax <= ymin) { return false; }
for(int y = int(ymin); y < ymax; ++y)
{
for(int x = int(xmin); x < xmax; ++x)
{
float x1 = x - xmin1, y1 = y - ymin1;
float x2 = x - xmin2, y2 = y - ymin2;
Vector2f Point1 =
RotatePoint(Vector2f(x1,y1),
Sprite1.GetCenter(),
-Sprite1.GetRotation());
Vector2f Point2 =
RotatePoint(Vector2f(x2,y2),
Sprite2.GetCenter(),
-Sprite2.GetRotation());
if(Point1.x > 0 && Point1.y > 0 && Point2.x > 0 && Point2.y > 0
&& Point1.x < Sprite1.GetSize().x && Point1.y < Sprite1.GetSize().y
&& Point2.x < Sprite2.GetSize().x && Point2.y < Sprite2.GetSize().y)
{
Color color1 = Sprite1.GetPixel(int(Point1.x),int(Point1.y));
Color color2 = Sprite2.GetPixel(int(Point2.x),int(Point2.y));
if (color1.a >= AlphaLimit && color2.a >= AlphaLimit)
{
return true;
}
}
}
}
return false;
}
bool PPCollision(Sprite Sprite1,Sprite Sprite2,float AlphaLimit = 50.f)
{
float xmin1 = Sprite1.GetPosition().x - Sprite1.GetCenter().x;
float ymin1 = Sprite1.GetPosition().y - Sprite1.GetCenter().y;
float xmin2 = Sprite2.GetPosition().x - Sprite2.GetCenter().x;
float ymin2 = Sprite2.GetPosition().y - Sprite2.GetCenter().y;
float xmax1 = xmin1 + Sprite1.GetSize().x;
float ymax1 = ymin1 + Sprite1.GetSize().y;
float xmax2 = xmin2 + Sprite2.GetSize().x;
float ymax2 = ymin2 + Sprite2.GetSize().y;
float xmin = max(xmin1, xmin2);
float ymin = max(ymin1, ymin2);
float xmax = min(xmax1, xmax2);
float ymax = min(ymax1, ymax2);
if(xmax <= xmin || ymax <= ymin) {
return false;
}
for(int y = int(ymin); y < ymax; y += 5)
{
for(int x = int(xmin); x < xmax; x += 5)
{
float x1 = x - xmin1, y1 = y - ymin1;
float x2 = x - xmin2, y2 = y - ymin2;
if(x1 > 0 && y1 > 0 && x2 > 0 && y2 > 0
&& x1 < Sprite1.GetSize().x && y1 < Sprite1.GetSize().y
&& x2 < Sprite2.GetSize().x && y2 < Sprite2.GetSize().y)
{
Color color1 = Sprite1.GetPixel(int(x1),int(y1));
Color color2 = Sprite2.GetPixel(int(x2),int(y2));
if (color1.a >= AlphaLimit && color2.a >= AlphaLimit)
{
return true;
}
}
}
}
return false;
}
bool PPCollision(Vector2f point, Sprite & s, float AlphaLimit = 20.f)
{
point -= s.GetPosition() - s.GetCenter();
if(point.x >= 0 && point.x < s.GetSize().x
&& point.y >= 0 && point.y < s.GetSize().y
&& s.GetPixel((int)point.x, (int)point.y).a > AlphaLimit)
return true;
else
return false;
}
